Thelesperma nuecense

Thelesperma nuecense, the Rio Grande greenthread, is an annual species of flowering plant in the aster family. It is native to Texas.

Description
It is an annual herb that grows up to 3 feet tall. The cauline leaves are "scattered over proximal 1/4–1/2(–3/4) of plant heights". It flowers from March to July. There are 8 ray florets per flower head; the laminae are yellow, suffused with a red-brown spot or band. The disc corollas are red-brown, with throats usually shorter than the lobes. The cypselae are 5 to 5.5 mm long; the pappi are 0.5 to 1 mm long.

Distribution and habitat
It grows in Texas at elevations of 0 to 200 meters from sea level on "disturbed sites on sands".